1. Department of Clinical Oncology; Graduate School of Medicine; Akita University; Akita Japan
2. Sugiyama Clinic; Kurokawa Miyagi Japan
3. Faculty of Health Sciences; Butsuryo College of Osaka; Osaka Japan
4. Department of Molecular Medicine and Biochemistry; Akita University; Akita Japan
5. Department of Pharmacy; Akita University Hospital; Akita Japan
6. Department of Clinical Pathology; Akita University Hospital; Akita Japan
7. Department of Organic Chemistry; Graduate School of Pharmaceutics; Tohoku University; Sendai Japan